Python Project With Source Code - Todo App Using Flask

Python Project With Source Code - Todo App Using Flask

Todo App using flask

Perform Operation like

1. Add Task

2. Delete Task

3. Update Task

To run app

- Create virtual Environment

- Install requirements

`pip install requirements.txt`

- run app

`py app.py`

*Requirements*

Flask==1.1.2

Flask-SQLAlchemy==2.4.4

Source code:

from flask import Flask, render_template, url_for, request, redirect

from flask_sqlalchemy import SQLAlchemy

from datetime import datetime

app = Flask(__name__)

app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///test.db"

app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False

db = SQLAlchemy(app)

class Todo(db.Model):

id = db.Column(db.Integer, primary_key=True)

content = db.Column(db.String(200), nullable=False)

completed = db.Column(db.Integer, default=0)

pub_date = db.Column(db.DateTime, nullable=False,

default=datetime.utcnow)

def __repr__(self):

return "<Task %r>" % self.id

@app.route("/", methods=["POST", "GET"])

def index():

if request.method == "POST":

task_content = request.form["task"]

new_task = Todo(content=task_content)

try:

db.session.add(new_task)

db.session.commit()

return redirect("/")

except:

return "There is an issue"

else:

tasks = Todo.query.order_by(Todo.pub_date).all()

return render_template("index.html", tasks=tasks)

@app.route("/delete/<int:id>")

def delete(id):

task = Todo.query.get_or_404(id)

try:

db.session.delete(task)

db.session.commit()

return redirect("/")

except:

return "This is an Problem while deleting"

@app.route("/update/<int:id>", methods=["POST", "GET"])

def update(id):

task = Todo.query.get_or_404(id)

if request.method == "POST":

task.content = request.form["task"]

try:

db.session.commit()

return redirect("/")

except:

return "There is an issue"

else:

tasks = Todo.query.order_by(Todo.pub_date).all()

return render_template("index.html", update_task=task, tasks=tasks)

if __name__ == "__main__":

app.run(debug=True)